623494450 has 48 divisors (see below), whose sum is σ = 1177754976. Its totient is φ = 245548800.

The previous prime is 623494447. The next prime is 623494451. The reversal of 623494450 is 54494326.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (623494451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1191889 + ... + 1192411.

It is an arithmetic number, because the mean of its divisors is an integer number (24536562).

Almost surely, 2^623494450 is an apocalyptic number.

623494450 is a deficient number, since it is larger than the sum of its proper divisors (554260526).

623494450 is a wasteful number, since it uses less digits than its factorization.

623494450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 623494450 is about 24969.8708446800. The cubic root of 623494450 is about 854.3009002074.

The spelling of 623494450 in words is "six hundred twenty-three million, four hundred ninety-four thousand, four hundred fifty".